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Rachel Bilson and Hayden Christensen "taking a break"

Colour us shocked - engaged couple Rachel Bilson and Hayden Christensen are "taking a break," US press are reporting today. Rachel, who flashed a ring-less finger to paps on the red carpet at a LA premiere this week, said when asked of her wedding plans: "No, no plans. No nothing."

A source said today that the pair are "taking about a month off" to decide if they should stay together.

Rachel and Hayden announced their engagement in February 2009 after dating for almost two years. They met on the set of action flick, Jumper.